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What is the Least Common Multiple of 69890 and 69909?

Least common multiple or lowest common denominator (lcd) can be calculated in two way; with the LCM formula calculation of greatest common factor (GCF), or multiplying the prime factors with the highest exponent factor.

Least common multiple (LCM) of 69890 and 69909 is 4885940010.

LCM(69890,69909) = 4885940010

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Least Common Multiple of 69890 and 69909 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 69890 and 69909, than apply into the LCM equation.

GCF(69890,69909) = 1
LCM(69890,69909) = ( 69890 × 69909) / 1
LCM(69890,69909) = 4885940010 / 1
LCM(69890,69909) = 4885940010

Least Common Multiple (LCM) of 69890 and 69909 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 69890 and 69909. First we will calculate the prime factors of 69890 and 69909.

Prime Factorization of 69890

Prime factors of 69890 are 2, 5, 29, 241. Prime factorization of 69890 in exponential form is:

69890 = 21 × 51 × 291 × 2411

Prime Factorization of 69909

Prime factors of 69909 are 3, 7, 3329. Prime factorization of 69909 in exponential form is:

69909 = 31 × 71 × 33291

Now multiplying the highest exponent prime factors to calculate the LCM of 69890 and 69909.

LCM(69890,69909) = 21 × 51 × 291 × 2411 × 31 × 71 × 33291
LCM(69890,69909) = 4885940010